package net.lshimokawa.pap6;

public class Calculadora {

        /* Sumar dos numeros  */
	public final int sumar(int a, int b) {
		return a+b;
	}

        /* Restar dos numeros */
	public final int restar(int a, int b) {
		return a-b;
	}

        /* Multiplicar dos numeros */
	public final int multiplicar(int a, int b) {
		return a*b;
	}

       /* Dividir dos numeros */
	public final int dividir(int a, int b) {
		if (b != 0){
                    return a/b;
               }else{
                    return -1;
               }
	}


}
